PSI - Issue 68

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2025) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 68 (2025) 782–787

European Conference on Fracture 2024 Investigation of methods for estimation of fatigue parameters and behavior of aluminum and titanium alloys Robert Basan a, *, Tea Marohnić a , Željko Božić b , Ela Marković a a University of Rijeka, Faculty of Engineering, Vukovarska 58, HR-51000 Rijeka, Croatia b University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia Abstract Selected representative methods for estimation of strain-life fatigue parameters of aluminum and titanium alloys are evaluated using previously proposed comprehensive methodology. Detailed material datasets on a number of aluminum and titanium alloys were assembled using data published in the relevant literature, including monotonic properties, cyclic stress-strain and strain-life fatigue parameters. With separate analyses, averaging of evaluation results was avoided and detailed and precise ratings of individual methods were obtained. Evaluation results provide detailed insight on the accuracy of selected estimation methods and their applicability for the estimation of fatigue parameters of aluminum and titanium alloys with different ultimate tensile strengths both in general as well as in low-cycle and high-cycle fatigue regimes separately. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers Keywords: estimation methods, fatigue parameters, aluminum alloys, titanium alloys, fatigue life 1. Introduction Aluminum and titanium alloys possess attractive combination of properties such as low density, high strength-to weight ratio, and excellent corrosion resistance, resulting in their widespread use in various industries, including aerospace, automotive and marine applications. In these areas, lightweight and fatigue-resistant designs are essential, requiring extensive experimental testing under various loading conditions, which is time-consuming and expensive. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers

* Corresponding author. Tel.: +385-51-651-530; fax: +385-51-651-416. E-mail address: robert.basan@riteh.uniri.hr

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers 10.1016/j.prostr.2025.06.130